Parts for your 1999 Toyota Echo|yaris-Rack boots

1999 Toyota Echo/Yaris rack-boots: what they do and when to replace them

Based on Toyota technical literature and cataloguing, the 1999 Toyota Echo/Yaris uses a rack-and-pinion steering assembly fitted with rubber bellows commonly called rack-boots (also known as steering rack boots or steering gear boots). Toyota’s Electronic Parts Catalogue lists a “Boot, Steering Gear” for first‑gen Echo/Yaris models (SCP10/NCP10 series), and the Toyota repair manual for the model shows inspection and replacement procedures for the steering gear boot on the rack-and-pinion unit. So yes—this vehicle definitely uses rack-boots.

On the 1999 Echo/Yaris, the rack-boots sit over the inner tie rods on each side of the steering rack. Their job is to keep water, grit, and road grime out of the rack’s moving bits, and to retain the light lubricant protecting the inner tie rod and rack shaft. If the car has hydraulic power steering, a torn boot can trap leaking fluid and signal a failing rack seal, on manual racks, it mainly exposes joints to contamination, accelerating wear.

For servicing, it’s smart to check the boots at every routine service or at least every 10,000–15,000 km. Look for splits, perishing, loose or missing clamps, and any oil or grit inside the bellows. Even small cracks can open up under steering movement. If there’s damage, replace the pair—rubber ages at the same rate left and right.

• Replacement tips owners appreciate:
  • Mark or measure the tie-rod length/threads before removal to keep toe close to spec.
  • Inspect inner tie rods for play while the boot is off, replace if loose or notchy.
  • Use proper band/ear clamps rather than generic cable ties for a secure seal.
  • A light smear of rubber-safe grease helps the boot lips seat without twisting.
  • Book a wheel alignment afterwards—disturbing tie rods affects toe.

Driving with a split rack-boot risks corrosion of the rack shaft, inner tie-rod wear, and, on power-steer cars, contamination that can shorten rack seal life. In both Australia and New Zealand, a torn steering gaiter can also cause a roadworthy/WoF failure. Fresh boots are inexpensive insurance for steering feel, tyre life, and compliance.

Popular questions about 1999 Toyota Echo/Yaris rack-boots

How often should the rack-boots be replaced?
There’s no fixed interval, they’re replaced on condition. With regular checks every service, many last 10+ years, but heat, UV, and road grime can age them faster. If there’s any cracking, splitting, or oil inside the boot, replace promptly.

What are the signs a rack-boot has failed?
Visible splits, loose clamps, or a boot that’s greasy inside are the giveaways. You may also notice accelerated inner tie-rod wear, wandering steering, or uneven tyre wear. On power-steer cars, oily residue inside the boot can hint at a leaking rack seal.

Do you need a wheel alignment after changing rack-boots?
Yes. Even if the tie-rod length is carefully marked, removing and refitting the outer tie rod can nudge toe out of spec. A post-repair alignment protects tyres and restores sharp steering.